When burning pure resin incense use Three Kings Brand Charcoal. Each charcoal disk is self-igniting. Just lit the end of the disk and wait till the small sparks have gone through the entire charcoal, then place it in your burning bowl. Resin incense is then placed, in small amounts, into the center of each disk. Do not over load your charcoal with incense because you may run the risk of putting it out. Charcoal disks are very hot just like a barbecue charcoal so use with caution. Each disk burn about 40 minutes. Available in foil wrapped 33 mm size containing 10 disks per pack.